We know JSON is a data-only format. Comments in the form // or /* */, are not allowed in JSON.

But how tsconfig.json allow that comment in both formats?

Is there any configuration to allow comments in JSON files for node.js projects?

CodePudding user response：

Because tsconfig.json is not parsed as pure JSON by the TypeScript compiler (it uses a more lenient parser, parseJsonText).

There is no configuration to allow comments in JSON, because JSON doesn't support comments.

JSON-derived formats such as JSON5 do.